96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "ultima/ultima8/misc/debugger.h"
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#include "ultima/ultima8/usecode/byte_set.h"
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namespace Ultima {
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namespace Ultima8 {
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ByteSet::ByteSet() : _size(0), _data(nullptr) {
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}
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ByteSet::ByteSet(unsigned int size) : _data(nullptr) {
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setSize(size);
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}
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ByteSet::~ByteSet() {
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delete[] _data;
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}
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void ByteSet::setSize(unsigned int size) {
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if (_data) delete[] _data;
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_size = size;
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_data = new uint8[_size];
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for (unsigned int i = 0; i < _size; ++i)
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_data[i] = 0;
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}
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uint32 ByteSet::getEntries(unsigned int pos, unsigned int n) const {
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assert(n <= 2);
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assert(pos + n <= _size);
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if (n == 0) return 0;
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if (n == 1) {
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return _data[pos];
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} else if (n == 2) {
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return (_data[pos] << 8) | _data[pos + 1];
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}
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return 0;
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}
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void ByteSet::setEntries(unsigned int pos, unsigned int n, uint32 val) {
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assert(n <= 2);
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assert(pos + n <= _size);
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if (n == 0) return;
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if (n == 1) {
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_data[pos] = static_cast<uint8>(val);
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} else if (n == 2) {
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_data[pos] = static_cast<uint8>((val & 0xFF00) >> 8);
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_data[pos + 1] = static_cast<uint8>(val & 0xFF);
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}
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}
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void ByteSet::save(Common::WriteStream *ws) {
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ws->writeUint32LE(_size);
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ws->write(_data, _size);
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}
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bool ByteSet::load(Common::ReadStream *rs, uint32 version) {
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uint32 s = rs->readUint32LE();
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if (s > 1024 * 1024) {
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warning("Improbable globals size %d, corrupt save?", s);
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return false;
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}
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setSize(s);
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rs->read(_data, _size);
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return true;
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}
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} // End of namespace Ultima8
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} // End of namespace Ultima
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